From fbbbe6570c2a78b4c37a9a038fddf5df3eb05803 Mon Sep 17 00:00:00 2001
From: Jun Aruga <jaruga@redhat.com>
Date: Mon, 17 Aug 2026 13:39:37 +0100
Subject: [PATCH] CI: Fix core_assertions LoadError in Windows cases

This commit fixes the following CI failures in Windows.
I don't know why this change fixed. Perhaps Bundler's handling with git
repository is different.

https://github.com/ruby/drb/actions/runs/32029577375/job/95386338154?pr=54
```
D:/a/drb/drb/test/lib/helper.rb:2:in 'Kernel#require': cannot load such file -- core_assertions (LoadError)
	from D:/a/drb/drb/test/lib/helper.rb:2:in '<top (required)>'
	from <internal:D:/rubyinstaller-head-x64/lib/ruby/4.1.0+4/rubygems/core_ext/kernel_require.rb>:139:in 'Kernel#require'
rake aborted!
Command failed with status (1)
D:/a/drb/drb/vendor/bundle/ruby/4.1.0+4/gems/rake-13.4.2/exe/rake:27:in '<top (required)>'
D:/rubyinstaller-head-x64/bin/bundle:33:in '<main>'
Tasks: TOP => default => test
(See full trace by running task with --trace)
Error: Process completed with exit code 1.
```
---
 Gemfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Gemfile b/Gemfile
index e673971..39549fe 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,4 +4,4 @@ gemspec
 
 gem "rake"
 gem "test-unit"
-gem "test-unit-ruby-core", git: "https://github.com/ruby/test-unit-ruby-core"
+gem "test-unit-ruby-core"